<template>
  <div class="auth-page">
    <div class="container page">
      <div class="row">

        <div class="col-md-6 offset-md-3 col-xs-12">
          <h1 class="text-xs-center">{{ isLogin ? 'Sign up' : 'Sign in'}}</h1>
          <p class="text-xs-center">
            <!-- <a href="">Have an account?</a> -->
            <nuxt-link v-if="isLogin" to="/register">Need an account?</nuxt-link>
            <nuxt-link v-else to="/login">Have an account?</nuxt-link>
          </p>

          <ul class="error-messages">
            <template v-for="(messages, feild) in errors">
              <li v-for="(message, index) in messages" :key="feild + index">{{ feild }} {{ message }}</li>
            </template>
          </ul>

          <form @submit.prevent="onSubmit">
            <fieldset class="form-group" v-if="!isLogin">
              <input v-model="user.username" class="form-control form-control-lg" type="text" required placeholder="Your Name">
            </fieldset>
            <fieldset class="form-group">
              <input v-model="user.email" class="form-control form-control-lg" type="email" required placeholder="Email">
            </fieldset>
            <fieldset class="form-group">
              <input v-model="user.password" class="form-control form-control-lg" type="password" required placeholder="Password">
            </fieldset>
            <button class="btn btn-lg btn-primary pull-xs-right">
              {{ isLogin ? 'Sign up' : 'Sign in' }}
            </button>
          </form>
        </div>

      </div>
    </div>
  </div>
</template>

<script>
import { login, register } from '@/api'
const Cookie = process.client ? require('js-cookie') : undefined

export default {
  name: 'SignPage',
  middleware: 'notAuth',
  data() {
    return {
      user: {
        username: '1996',
        email: '1996@mail.com',
        password: 'aa123456'
      },
      errors: {} // 错误信息
    }
  },
  computed: {
    isLogin() {
      return this.$route.name === 'login'
    }
  },
  methods: {
    async onSubmit () {
      try {
        let res = this.isLogin
          ? await login({ user: this.user })
          : await register({ user: this.user })

        // 保存用户的登录状态
        this.$store.commit('setUser', res.data.user)

        // 将登录状态持久化
        // 这部分登录逻辑一定是运行在客户端的，因为这需要用户手动操作。
        Cookie.set('user', res.data.user)

        // 跳转到首页
        this.$router.push('/')
      } catch (err) {
        this.errors = err.response.data.errors
        console.dir(err)
      }
    }
  }
}
</script>
